Part of the problem is that bulk mailers are basing their business models on chewing up more free resources (e-mail bandwidth) than what's available. Many of those folks are spammersusing illegitimate tactics to hijack resources, but some of them are trustworthy publishers runninglegitimate opt-in services. Regardless of the legitimacy, it's the quantity that matters. If the resources across the system are finite, something has to be done to reduce the congestion or else the systemwill collapse. The ISPs are doing something and it's having some success in spite of its imperfections. If you can't offer them a financial incentive to change, I think you're going to be griping for a long time.
